FIFA president Gianni Infantino has expressed his "dismay" at being linked to documents leaked by Panamanian law firm Mossack Fonseca.
Infantino's signature is reportedly on a 2006 television contract sold to two businessmen who have since been accused of bribery.
The Swiss has criticised the media for their portrayal of the issue and the way his "integrity is being doubted".
Infantino's statement read: "I am dismayed and will not accept that my integrity is being doubted by certain areas of the media, especially given that UEFA has already disclosed in detail all facts regarding these contracts.
"From the moment I was made aware of the latest media enquiries on the matter, I immediately contacted UEFA to seek clarity. I did this because I am no longer with UEFA, and it is they who exclusively possess all contractual information relating to this query.
"In the meantime, UEFA has announced that it has been conducting a review of its numerous commercial contracts and has answered extensively all media questions related to these specific contracts."
UEFA has also released a statement this evening denying any wrongdoing.
